Welcome to Courthouse Update, a weekly rundown goings-on at the Maricopa County Superior Court.

This week, a Scottsdale man pleads guilty to murdering his wife, while the alleged killers of a teenage boxing champ plead not-guilty, a Mesa man in a murder-for-hire plot has a court date, and more:

Suspects in murder of teen boxing champ plead not-guilty

obert Chavez and Joseph Jessie Corrales both pleaded not-guilty to the murder of 17-year-old national boxing champion Alexis Urbina. Police allege the men killed Urbina while burglarizing his family's home in south Phoenix. Their next court date for both co-defendants is January 9 at 8:30 a.m.

Devin Almejo, whom police allege tried to hire a hitman to kill his grandfather, then made Facebook posts taking credit for the murder -- which never happened -- pleaded not guilty to several charges. Almejo is accused of making a Craigslist posting saying that he was looking for a gun to kill his grandfather. An undercover Mesa officer responded to the posting, and Almejo allegedly agreed to pay the cop to kill his grandfather. His next court date is January 8.

Scottsdale resident Michael Cohn pleaded guilty to second-degree murder for killing his wife of more than 26 years earlier this year. Cohn had admitted to murdering his wife after he called 911 on himself after strangling her on the second floor of their home. His sentencing is scheduled for January 6.

Nikki Hockett, the mother of the 2-year-old girl who was found wandering around an Anthem neighborhood around 4 a.m. this year, was sentenced to three years of probation for child abuse. A man who was headed to work for an early shift found the youngster, and Hockett didn't show up to claim her kid until about 2 1/2 hours later. CPS already had a file on Hockett before this incident.